Neck-forming mechanism for paper-bottle machines.



APPLICATION FILED NOV. 19. I913.

Patented Apr. 10, 1917.

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351 $6361 mun mzmaso W. F. REGAN. NECK FORMING MECHANISM FOR PAPER BOTTLE MACHINES.

APPLICATION FILED NOV. 19. I913.

. Patented Apr. 10, 1917.

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" san T T @FWQE WILLIAM F. REGAN, OF BROOKLYN, NEW YORK, ASSI G-NOR, BY MESNE ASSIGNMENTS, T0 EMPIRE PAPER BOTTLE COMPANY, A CORPORATION OF NEW JERSEY.

NECK-FORMING MECHANISM FOR PAPER-BOTTLE MACHINES.

-Application filed November 19, 1913. Serial No. 801,823.

To all whom it may concern:

Be it known that L'WVILLIAM F. REGAN,

a citizen of the United States, residing in the city of New York, borough of Brooklyn, county of Kings, and State of New York, have invented a certain new and useful Neck-Forming Mechanism for Paper- Bottle Machines, of which the following is a specification. A

In certain prior applications, Serial No. 660,945, filed Jan. 8, 1912 and Serial Nos. 801,821 and 801,825, filed Nov. 19, 1913, to which I am a party, there are disclosed mechanisms for forming the body portions of fibrous containers, such as paper bottles, the latter being characterized by a crimped or plaited tapering portion and a reduced neck portion. This neck portion consists of irregularly positioned or flattened crimps at one end of the tapered part of the bottle, but manifestly said neck portion should be finished in a manner to result in imparting a smooth, cylindrical exterior surface thereto and to bind the crimps or plaits into a firm condition so that the fibrous bottle will not break down at the neck and will properly receive the cap or other closure.

The present invention is a means for forming the neck portion 'of a bottle, the latter being given a tapering form by the converging orimps; The mechanism embodies a mandrel, means for feeding a strip of adhesive material to the neck portion of an embryo container present on said mandrel, and means for wrapping or coiling the adhesive strip exteriorly upon said neck portion.

The feed mechanism is operated to grip and feed the adhesive strip, but at certain intervals said feed mechanism is released from gripping contact with the adhesive strip, whereupon the strip is cut or'severed transversely.

Means are employed for exerting pressure upon the adhesive strip during the operation of coiling or winding it upon the bottle neck,

whereby the strip .is wrapped firmly around the crimped neck of the container. Prior to removing the bottle from the mandrel or former, the pressure'mechanism and the feed mechanism are operated automatically so as to position them free from contact with the bottle neck and the strip, thus permitting Specification of Letters Patent.

Patented Apr. 10, 191W.

the bottle to be discharged without interference by the pressure and feed devices.

In the accompanying drawings, I have illustrated one practical embodiment of the invention, but the construction shown therein is to be understood as illustrative, only, and not as defining the limits of the invention.

Figure 1 is a side elevation illustrating the operative position of the neck band applying device in full lines, the dotted lines showing the parts moved to a position wherein the pressure devices are withdrawn from the path of the forming cylinder and the feed devices are moved away from the path of feed of the neck band strip.

Fig. 2 is a side view illustrating the pressure devices in their non-operative positions.

Fig. 3 is a plan view of the devices shown in Fig. 1., the view looking from above the devices positioned above the path of the strip. 7

Fig. 4 is a plan view illustrating the devices below the path of the strip.

A designates a forming mandrel of the kind disclosed in one of the prior applications, Serial No. 801,824, to which I am a party. Said forming mandrel is constructed to produce longitudinal crimps or plaits at the tapering neck portion of the paper bottle. Said mandrel is mounted" for rotary and reciprocating movement; and to the mandrel is adapted to be fed an adhesive strip X, whereby the strip is wound or coiled around the compressed or flattened ends of the plaits or folds of the paper bottle, as a result of which the adhesive strip is united to the neck portion of the paper bottle in a manner to retain the plaits or crimps in proper position and to finish the neck of the bottle for the reception of a closure. If desired, a strip of paper of the requiredwidth and character may be fed by devices embodying this invention, and during such feed an adhesive may be applied .to one surface of the strip; but it is prethe paper strip embodies a well B within the water of which is immersed a fibrous wick C, the latter being retained in position by a suitable screw 0 attached to a shoulder portion 0" within the well. The upper part of this fibrous wick extends into the chamber of well B above the level of the liquid therein, and this upstanding end of the fibrous wick is in contact with the moistening roller D, the latter being positioned adjacent to the path of-fecd of strip X so as to contact with the gummed face of said strip. The moistening roller may consist of a suitable fabric or it may consist of a roller covered with fabric, the fabric portion 'of the moistening roller being in frictional contact with the upstanding end of fibrous wick C, whereby the moisture is supplied to roller D. The roller may be mounted in any desired way within the upper part of the well; as shownsaid roller is provided with a trunnion which is journaled in an arm E positioned exteriorly to the tank. This arm is pivoted at e to the lower part of the tank, and said arm E is provided with a-tail piece e having a slot or aperture through which passes a bolt 6', the latterretaining a spring E in cooperative relation to the pivoted arm E, for the purpose of normally pressing the arm in a direction which will position the moistening roller in forcible contact with the gummed face of the adhesive strip.

' scribed.

Mounted loosely on the shaft cl of roller D is a bellcrank carrying arm F which is adapted to swing on shaft d as a center, and connected to the free end of this carrying arm F is a curved carrying arm G, said parts F G constituting the two members of a two-part carrying arm for supporting the pressure mechanism in cooperative relation to the bottle forming mandrel A. Member F of the two-part carrying arm is provided with a short upstanding piece f, whereas the curved member G of the two-part carrying arm is likewise provided with a short upstanding member 9, said upstanding parts 7' 9 being connected by a coiled spring H, the purpose of which is to impart a quick upward movement to arm G at certain stages in the operation of the pressure mechanism.

On the carrying arm F is supported a shaft 71 of a pressure roll I, the arm G being loosely fitted on said shaft 17 to swing thereon as its axis of movement. The free end of curved arm G supports a shaft of another pressure roll J, whereby pressure roll J is mounted directly on curved arm G so as to be movable therewith into and out of operative relation to mandrel A. Pressure rolls I J in the operative position of the pressure mechanism cooperate with the forming mandrel A at diametrically opposite points, that is to say pressure roll I is above the mandrel, whereas pressure roll J is below the mandreh'see Fig. l, but when the mandrel A is to be moved endwise then the parts operate to raise roll J above the mandrel and to lift roll I away from the mandrel, all asindicated in Fig. 2.

In connection with the pressure rolls I J it is preferred to employ a flexible pressure member herein shown as an endless band K, the latter passing around rolls I J and being shiftable therewith into and out of operative relation to mandrel A, said flexible band K being adapted to conform to the curvature of mandrel A and to fit part way around said mandrel for the purpose of exerting pressure upon that part of the neck forming strip X intermediate said pressure rolls I J. For the purpose of retaining the flexible pressure band K in a taut condition during the operation of moving the pressure mechanism toward and from the forming mandrel a tension roller L is employed. This tension roller is supported by a shaft Z on a bellcrank L, the latter being pivoted at m to curved arm G intermediate the arms of the latter. To the bell-crank L is connected a coiled spring M adapted to exert its tension on said bellcrank L for the purpose of retaining the endless band in a taut condition. The roller which is carried by said bellcrank L is positioned for frictional engagement with endless band K intermediate the pressure rolls I J, and the spring M by which tension is applied to said tension roller is connected at one end to short upstanding member g of pivoted arm G.

Motion is imparted. to roll I from roller D by a train of gears n 0 p. The gear a is secured rigidly to the shaft of roller D; gear p is secured rigidly to the shaft of pressure roll I, whereas gear 0 is an idler loosely mounted on a pin 0' attached to carrying arm F, whereby the motion of roller D is communicated through gear a to the idler 0 which in turn drives gear 39 and the pressure roll I, the latter operating to impart motion to endless pressure band K, which pressure band is kept normally in a taut condition by the action of roller L which is under the tension of spring M.

Means are provided for automatically operating the two-part jointed arm F G in order to position the pressure mechanism into and out of operative relation to the forming mandrel. The upstanding member f of arm F is provided with a stud O which projects into a longitudinal 'slot g which is formed in a link Q. Said link extends above arm F and its other end is connected loosely to a pin 39 which is provided on the upstanding member 9 of arm G. To the pin p is attached one end of a bent operating rod P, the other end of which rod is pivoted by a pin R30 to a bell crank P The other end of the bell crank is pivoted by a pin 9 to a driving rod Q, the lower end of which is provided with 'a roller 9 positioned to ride in a groove 1" of a cam R mounted on a shaft R whereby the operation of the cam imparts motion to rods P Q and bell crank P, for the purpose of first lifting arm G and thereafter turning arm F on the pivot d for-the purpose of moving the pressure mechanism into the non-operative position of Fig. 2 or into the operative position shown in full lines in Fig. 1.

Strip X is in a roll aw and it is moved or advanced periodically by the operation of a plurality of pairs of feed rolls'S S, T T. The rolls S T are positioned above the path of feed of the strip; they are supported by shafts on. suitable bearings of the frame work (not shown) and motion is given thereto by any suitable or appropriate means. The lower rolls S T are mounted for movement relative to the upper rolls S T and these lower rolls have frictional contact with the paper strip and with the v upper rolls. so that the lower rolls will oooperate with the driven upper rolls for the purpose of feeding the strip whensaid lower rolls occupy the operative position shown in full lines in Fig. 1. Roll S is loosely journaled on an arm 8 of a bell crank S and to one arm of this bell crank is pivoted a link if, the other end of which is pivoted to a lever T said lever T having the feed roll T loosely mounted thereon. The bell crank S and lever T support the lower rolls S T normally in frictional contact with the paper strip, but said rolls S T are simultaneously withdrawn from the path of the strip by moving them into the dotted line position of Fig. 1, said movement being effected by a cam U having a groove u in which operates a roller u on one end of a link U, the other end of which is pivoted by a pin a to bell crank S It is manifest that cam U operates to move the lower feed rolls S T into cooperative relation to the upper feed rolls S T so that the two sets of feed rolls will frictionally engage with the strip X for the purpose of imparting movement to the strip, but when a predetermined length of strip shall have been fed in the forming mandrel, cam U will then operate to Withdraw the lower feed rolls one form of cutting mechanism consisting of the shears V V positioned between the feed rolls and adjacent to the path of feed of the strip. These shears are operated atthe required time to sever the paper strip when a predetermined length of said strip shall have been advanced bythe feed rolls to the wrapping devices by which the strip is coiled around the neck portion of the paper bottle.

With the parts in the position shown by full lines in Fig. 1, the feed rolls engage with the paper strip, rollers D D are in contact with said strip so as to supply moisture to the gummed face thereof, rolls I J ,and pressure band, K are in cooperative relation to mandrel A. As the mandrel is rotated the moistened gummed strip is-wrapped or coiled around the crimps or plaits at one end of the paper bottle, and simultaneously with the wrapping or coiling operation rolls I J and band K exert pressure upon the strip for the purpose of wrapping it tightly around the plaited or crimped part of thebottle neck. When a predetermined length of the strip is wrapped around the bottle neck shears V V sever the strip, cam U operates to withdraw t e feed rolls S T from cooperative relation to feed rolls S T, re.- spectively, and cam R operates rod P to shift the pressure mechanism away from its operative position relative to the mandrel.

When the rod P is moved toward the right in Fig. 1, it pulls on the pin 10 and thus acts on member 9 of arm G so as to swing said arm G on shaft 2' as a center, thus lifting the arm G to the dotted line position of Fig. 1,

which moves freely over the stud Q on the member 7 of arm F, at which time spring H cooperates with arm G for quickly lifting it to the raised position, and when the end wall of the slot 9 impinges said stud U, the rod P thus exerts a pull through the link Q on the stud O, as a result of which the arm F is lifted on the axis afforded by shaft 01, whereby the pressure roll I is lifted away from the mandrel -A, the entire pressure mechanism being thus quickly withdrawn from operative relation to the mandrel.

nism for applying the strip to the neck of l the next bottle the rod P is operated to lower the arms G I for the purpose of restoring pressure rolls I J and pressure band K into cooperative relation to the mandrel, and the feed rolls having been restored to gripping engagement with the paper strip, said strip is fed forward over and in contact with the moistening roll and below the rollers D I so that the strip will be directed to and around the neck portion of the paper bottle on the mandrel, the devices operating to exert pressure upon the paper strip simultaneously with the operation of winding said paper strip around the neck of the paper bottle.

Having thus fully described the invention, what I claim as new, and desire to secure by Letters Patent is:

1 In a paper container machine, the combination with a mandrel upon which is adapted to be formed a container with a crimped mouth portion, of feed means for directing to the crimped material of said mouth portion a separate strip of material the width of which s equarsubstantially to the crimped mouth portion of the container whereby the separate strip is adapted to be wound exter-' nally upon the crimped mouth portion of the container, and pressure mechanism including cooperating rolls and a band positioned in the path of feed of said separate strip, said pressure mechanism cooperating with said mandrel for applying pressure to the separate strip andto the crimped material of the container mouth during the winding of the separate strip thereon.

2. In a paper container machine, the conibination with a mandrel upon which is adapted to be formed a container with a crimped mouth portion, of feed means for directing to the crimped material of saidmouth portion a sepamte strip of material the width of which is equal substantially to the crimped mouth portion of the container whereby the separate strip is adapted to be wound externally upon the crimped mouth portion of the container, cooperating pressure rolls and an endless band positioned to partially envelop that part of said mandrel adapted to contain the crimped mouth of the container, said rolls and band operating to apply pressure to the crimped material and to the separate strip while winding the latter upon the crimped material, and means for bodily shifting the pressure rolls and band relatively to the path of feed of the separate stri In a paper container machine, the combination with a mandrel upon which is adapted to be formed a container with a crimped mouth portion, of an intermittently-operated feed mechanism for directing to the crimped material of the container mouth a definite length of narrow material the width' of which is equal at least to the crimped material of the container mouth, whereby the narrow material is adapted to be Wound externally upon the crimped material present upon the mandrel, pressure mechanism partially enveloping that part of the mandrel to which the narrow strip is directed, and means for shifting said pressure mechanism relatively to the mandrel whereby the pressure mechanism is adapted to be withdrawn from contact with the coiled strip and the container on the mandrel is free from the pressure exerted by said pressure mechanism.

4. In a device of the class described, the

combination with a container-forming man drel, of strip feeding rolls, pressure rolls, a flexible band in cooperative relation to the mandrel and the pressure rolls for wrapping a strip upon a crimped neck of the container and for exerting pressure upon said crimped neck and the strip, and automatic mechanism for shifting the strip feeding rolls, the pressure rolls and the flexible band relative to the path of the strip.

5. In a device of the class described, the

combination with a mandrel, of strip feeding rolls for feeding a strip into position to be coiled upon the. crimped neck of material wound on the mandrel, cooperating rolls and a flexible band positioned relatively to the mandrel for compacting the crimped material and for exerting pressure upon a strip to be wrapped around said crimped material, and means for simultaneously shifting said strip-feeding rolls and the cooperating rolls and band relative to the path of the strip.

6. In a device of the class described, the combination with a forming mandrel adapted to produce a container with a crimped neck portion, of strip-feeding rolls, means for shifting said strip-feeding rolls relative to the path of feed of a strip, pressure rolls and a flexible band cooperating with said forming mandrel for compacting the crimped material on the mandrel and for exerting pressure on the strip while wrapping the latter on said crimped material, and automatic means for shifting said strip feeding rolls and simultaneously therewith moving the pressure rolls and the flexible band out of operative relation to said forming mandrel. s

7. In a paper container machine, the combination with a single mandrel having a part unitary therewith upon which is adapted to be formed a container with a crimped to said definite part unitary with the mannally upon said crimped mouthportion of the container, a plurality of cooperating pressure devices adapted when in operative position to partially envelop that definite part of the mandrel upon which the separate strip is to be wound, and means for shifting said pressure devices simultaneously with respect to said mandrel, said shifting means being effective in imparting movement to the pressure devices to such an extent as to free the same from contact with the mandrel and to afford the clearance requisite for the withdrawal with the mandrel of the formedcontainer from the pressure devices.

8.. In a paper container machine, the combination with a mandrel upon which is adapted to be wound and crimped a web of material to form a container with a crimped mouth portion, of feed means operable to direct to a definite part of said. mandrel a separate strip of material the width of which is equal at least to the crimped mouth of said container, an endless pressure member positioned to partially envelop the definite part of said mandrel upon which the separate strip is to be wound, and means for shifting said pressure strip relatively to the mandrel.

9. In a paper container machine, the com= bination with a mandrel upon which is adapted to be wound and crimped a web of material to form a container with a crimped mouth portion, of feed means operable to direct to a definite part of said mandrel a separate strip of material the width of which is equal at least to the crimped mouth of said container, cooperating rolls and an endless band positioned to partially envelop said definite portion of the mandrel upon which the separate strip is adapted to be wound, and means for shifting the rolls and the band simultaneously with respect tosaid mandrel. x

10. In a device of the class described, the combination with a mandrel upon which a web of material is adapted to be wound, of feed rolls and a flexible band for feeding an adhesive strip into a position to be coiled upon the neck portion of a container positioned upon said mandrel, a moistener receptacleembodying a roller to which tension is applied by a spring-actuated arm, and pressure rolls cooperating with said flexible band for exerting" pressure upon the strip simultaneously with its application to the container.

11. In a paper container machine, the combination with a mandrel upon which is adapted to be wound and crimped a web of material to form a container with a crimped mouth portion, of feed means operable to direct to a definite part of said mandrel a separate strip of material the width of which is equal at least to the crimped mouth of said container, a jointed member positioned in such relation to said definite part of the mandrel as to extend partially around the same, a plurality of pressure devices movable with said jointed member, and means for operating the jointed member whereby the pressure devices are positioned to cooperate with the mandrel during the application of the separate strip tothe crimped material and to be withdrawn from contact with said crimped material and the narrow strip wound thereon.

12. In a device of the class described, the combination with a mandrel, of strip feeding means, a pivoted arm having another arm pivoted thereto, a spring connecting the-two arms, pressure mechanism carried by said arms in position for exerting pressure upon the material wound on said mandrel, and means for imparting movement to said pivoted arms for shifting the pressure I mechanism with respect to said mandrel.

13. In a paper container machine, the combination witha mandrel upon which is adapted to be wound and crimped a web of material to form a container with a crimped mouth portion, of feed means operable to direct to a definite part of said mandrel a separate strip of material the width of which isequal at least to the crimped mouth. of said container, a member composed of separate parts pivoted and sprmg controlled for conjoint action under one condition and for independent action under other conditions, a plurality of pressure devices carried by said parts composing the member, and means for imparting movement to the member so as to position the pressure devices in operative relation to the mandrel and to quickly withdraw said pressure devices -l'rom contact with said man-= drel.

In a device of the class described, one combination with a mandrel, of feet means, a jointed arm adapted to be sln into and out of operative relation the mandrel, pressure rolls carried by said arm, an endless pressure band supported by the arm, a tension device cotiperating with said pressure band and supported by the arm, and means for imparting movement to the arm.

15. In a device of the class described, the combination with a mandrel, of strip teeding means, a jointed arm positioned to tend into cooperative relation to the maindrel, a spring-connecting the members of said arm, a slotted link pivoted to one mem-= ber of the arm, a stud fixed on the other member of said arm and fitted in-the slot of said link, an operating rod connected to one member of the arm, and pressure mecha nism carried by the arm.

may be shifted, pressure mechanism in cooperative relation to the mandrel for applying pressure to the strip While wrapping it upon the material coiled on the mandrel,

and separate operating means for shifting the pressure mechanism into and out of operative relation to the mandrel.

In testimony whereof I have signed my 15 name to this specification in the presence of two subscribing Witnesses.

WILLIAM F. REGAN.

Witnesses:

WALTER E. HINDLE, ALBERT C. PARDEE. 

